Atomic & Molecular Physics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 7 - 10 of 19

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Question number: 7

» Atomic & Molecular Physics » Relativistic Corrections for Energy Levels of Hydrogen Atom

Appeared in Year: 2014

MCQ▾

Question

A permanently deformed even – even nucleus with has rotational energy 93 KeV. The energy of next excited state is – (June – 2014)

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Question number: 8

» Atomic & Molecular Physics » LS & JJ Couplings

Appeared in Year: 2012

MCQ▾

Question

The spin orbit interaction in an atom is given by where L and S denote the orbital and spin angular momenta, respectively of the electron. The splitting between the levels and is – (June)

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Question number: 9

» Atomic & Molecular Physics » Population Inversion

Appeared in Year: 2012

MCQ▾

Question

Consider the energy level diagram shown below, which corresponds to the molecular nitrogen laser.

 The energy level diagram

the Energy Level Diagram

In figure the energy level diagram is shown.

If the pimp rate R is and the decay routes are as shown with and , the equilibrium populations of states 2 and 1 are respectively. (December)

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Question number: 10

» Atomic & Molecular Physics » Rate Equation

Appeared in Year: 2012

MCQ▾

Question

Consider a He – Ne laser cavity consisting of two mirrors of reflectivity and . The mirrors are separated by a distance and the medium in between has a refractive index and absorption coefficient . The values of the separation between the modes and the width of each mode of the laser cavity are – (December)

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